our conversation is in the rundown. today's science roundup features dragonflies, or as one science writer calls them "the bengal tigers of the microworld." find the story on our home page. how can you secure a larger social security payment from an ex-spouse? the answer is in this week's installment of "ask larry." all that and more is on our web site, newshour.pbs.org. gwen? >> ifill: and that's the newshour for tonight. on tuesday, we'll look at turkey's request for nato to deploy patriot missiles along its border with syria. i'm gwen ifill. >> brown: and i'm jeffrey brown. we'll see you online, and again here tomorrow evening. thank you, and good night. major funding for the pbs newshour has been provided by: >> bnsf railway. >> macarthur foundation. and with the ongoing support of these institutions and foundations. and... this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. captioning sponsored by macneil/lehrer produc